Display screen or a portion thereof with a graphical user interface with an animated slider



FIG. 1 is a front view of a display screen or portion thereof with a graphical user interface with an animated slider showing the new design, in the first position of a sequence.

FIG. 2 is a front view of the display screen or portion thereof of FIG. 1, in the second position of a sequence.

FIG. 3 is a front view of the display screen or portion thereof of FIG. 1, in the third position of a sequence; and,

FIG. 4 is a front view of the display screen or portion thereof of FIG. 1, in the fourth position of a sequence.

The appearance of the animated portions of the slider sequentially transition between the images shown in FIGS. 1-4. The process or period in which the image transitions to another forms no part of the claimed design.

The broken line showing of display screens, portions of display screens, text and graphical elements form no part the claimed design. 

CLAIM The ornamental design for a display screen or portion thereof with a graphical user interface with an animated slider, as shown and described. 